The ASRock B550 Steel Legend is the objective winner of this comparison, securing more individual specification victories than its competitor. Its most significant advantage is the inclusion of additional M.2 slots, which provides a 50% increase in storage expansion capability compared to the MSI MAG B550 TOMAHAWK. This hardware configuration makes the ASRock board the superior choice for users prioritizing high-capacity internal storage solutions and flexible drive connectivity within their system builds.

Users who require extensive storage configurations should select the ASRock B550 Steel Legend to take advantage of its superior M.2 slot count. Conversely, the MSI MAG B550 TOMAHAWK is the better option for enthusiasts who prioritize memory performance, as it offers a 4% advantage in maximum memory speed. Choosing between these two motherboards depends entirely on whether your specific build requirements lean toward maximizing total storage capacity or achieving slightly higher memory frequency support.